You must be Catholic because I believe that faith in Jesus Christ is what gets you into Heaven.
You seem to feel that a marriage contract gives you the right, even, the obligation to kill your spouse if she is not in 100% perfect operating order.
I never said that and I never implied it. If my wife were to tell me that she'd want to stay alive not matter how damaged or destroyed her brain or body is then I would use all my power to fight for that.
What I am saying is that the marriage contract should determine where the authority in making the decision comes from. Not from the government, not from a judge, and not even from the family.